ILLUSTRATIONS. XV 



Pago 



FiG.47. Twelfth caudal vertebra of Diplodocus longus; aide view 495 



Is. The same vertebra; bottom view pr, 



19. Fourth cervical vertebra of Morosaurus grand is Marsh : Hide view 1:17 



50. The same vertebra ; back view 497 



51. I 'el vie arch of Morosaurus grandis; seen from in front 497 



52. skull 01 Stegosaurus stenops Marsh; side view 499 



.'>:;. Tooth of Stegosaurus angulatus .Marsh • 499 



51. Brain-cast of Stegosaurus nngulatus; side view 499 



55. Cast of neural cavity in sacrum of Stegosaurus nngnlatus; side view pip 



56. Dermal spine of Stegosaurus nngnlatus 500 



'■7. Dermal plate of Stegosaurus iingiihitiis 500 



58. Skull of Camptosaurus medius .Marsh ; seen from the left side 502 



59. Fifth lower tooth of < lamptosanrus medius 502 



60. Skull of Ceratosaurus oasicornis Marsh; side view 504 



61. Pelvis of Allosaurus fragilis Marsh; side view, sen li the left 505 



*>— - Skull of I liplosanrns felix Marsh ; top view -,07 



63. Skull of Glyptops ornatus Marsh ; top view 507 



64. t larapace of same species : top view -117 



65. .Jaws of Maoelognathus vagans Marsh; seen from above 507 



till. The same specimen; side view -,07 



67. Tooth of Cora tod us giintheri Marsh .-,117 



68. Left lower jaw of Stylacodon gracilis Marsh; outer vievi ;,ns 



69. Right lower jaw of Diplocynodon victor Marsh; outer view 508 



70. Left lower jaw of Ctenacodon Berratus Marsh ; inner view 508 



71. Skull and lower jaw of I'tcranodon longiceps Marsh; side view .-,111 



72. The same skull ; top view 5p3 



7:!. The same skull ; hot torn view ,Ki 



74. Lower jaw of Pteranodon longiceps; top view 5 pi 



75. Skull and lower jaw of Triceratops prorsus Marsh : seen from the left side 511 



76. Skull of Triceratops prorsus; seen from the front -,l 1 



77. Skull of Sterrholophus llahellatus Marsh; seen lion, behind Ml 



78. Maxillary tooth of Triceratops serratus Marsh -,12 



79. Fragment of skull, with horn-cores, of Ceratops alticornis Marsh; front view 512 



80. Left horn-core of same specimen ; side view 510 



SI. Skull ..f ( laosaurus anncct. ns Marsh; Been from the loll 51 7 



82. Series of five lower teeth of Claosanrus an lens 517 



83. Left tibia of ( irnithomimus velox Marsh 513 



81. Left metatarsals of same specimen 5jg 



85. Phalanges of second digit of same fool ; froni view 518 



St!. Left metacarpals of same species, perhaps of smaller individual; front view 518 



87. Upper molar tooth of Cimolomys digona Marsh 521 



ss. 'third or loin ih lower premolar of Halodon serratus Marsh 521 



80. Upper molar of Alia Ion lentus Marsh 521 



90. Lower jaw of Teh don pnostans Marsh 521 



91. Upper cutting premolar of Oracodon ancepa Marsh 521 



92. Premolar of Stagodon valid us Marsh 52i 



